Maybe I don't know what you are trying to edit on the homescreen, then. If you have the themebuilder and know what you are doing (I don't know theme building).
There is a homescreen shortcut to BBF, the WAP site and the FAQ site, http://www.blackberryforums.com/gene...lications.html
I don't know about an alert notice, do you mean notification if someone has replied to your thread? See the thread tools, "Subscribe to this thread", could be what you want.